Floor and ceiling construction.



Nn. 690,62l. Patented Ian. 7, I902.

. SCHRATWIESER.

FLOOR AND CEILING CONSTRUCTION. (Application filed Mar. 29, 1900.) (No Model.)

i/Zziesses;

74 \N v My W THE NORRIS PETERS 00., PHOTD-LITHOY, wAsnmaYom D. c.

UNITED STATES I PATENT OFFICE.

JACOB SCHRATWIESER, OF BROOKLYN, NEW YORK. V

FLOOR AND CEILING CONSTRUCTION.

SPECIFICATION forming part of Letters Patent No. 690,621, dated January 7, 19 02.

Application filed March 29,1900.

To all whom, it may concern:

Be it known that I, JAooB SCHRATWIESER, a citizen of the United States, residing at the city of New York, in'the State of New York, have invented certain new and useful Improvements in the Construction of Floors and Ceilings, of whichthe following is a specification.

My invention relates particularly to the construction of fireproof floor-arches and ceilings, or, in other words, that class of construction in which the joists, girders, and intermediate supports and braces are composed of iron or steel and the framework thus formed filled with concrete or like substance, so that the whole will form a solid mass for the support of the floors and ceilings. are, among others, to provide alight, strong, and inexpensive construction of this character. j

To these ends it consists ,of the combination of parts and arrangement of details hereinafter described and claimed,and illustrated in the accompanying drawings, in which like letters refer to like parts in each figure thereof.

In the said drawings, Figure 1 is a vertical cross-section of a construction showing my improvements with partscut away. Fig. 2.

is a like View of a modification. Fig. 3 is a plan view of the construction shown in Fig. 2. Fig. 4 is a detached portion of the same.

To the upper double flanges at of the joists or I-beams A the tension brace-rods B are socured by passing over and having their outer ends turned over the outer edges of the same, forming hooks. The rods extend downwardly between the two beams and are secured to the cross-pieces D. A

The cross-pieces D are preferably composed of angle-iron of L or T cross-section, with one flange resting upon the lower flange a of the beam and the other flange, which is cut away Its objects Serial No. 10.679. w(No model.)

wise secured. I

In the modified construction, Fig. 2, the

cross-pieces F rest upon the lower flanges of the beams and are bent upwardly, forming arches upon which thesheet-metaI lath E is spread and to which the rods 0 are secured. This lath is of odinary form, having perforations and flanges and is provided at intervals corresponding to the cross-pieces with ribs or ridges e, which are adapted to fit over the said cross-pieces. Upon the cross-pieces and lath the concrete or other filling is spread, filling in the space between the beams, so that the brace-rods are embedded therein.

What I claim is-' 1. -A construction of floors and ceilings comprising beams, cross-pieces composed of angle iron extending from one lower flangeto the other of said beams and sheet-metal lath provided with ribs adapted to receive said cross-pieces.

2. In the construction of floors and ceilings, the combination of beams, secured to the lower flanges of which and extending across lath provided with ribs corresponding to said cross-pieces and tension-rodsconnecting said cross -pieces with the upper parts of said beams.

Signed at the city of New York, county and State of New York, this 15th day of March,

J AOOB SCHRATWIESER. Witnesses:

M. K. WHITMAN, J. SIEBECKER. 

